Enum Op

#[non_exhaustive]
pub enum Op {
    Exact,
    Greater,
    GreaterEq,
    Less,
    LessEq,
    Tilde,
    Caret,
    Wildcard,
}

SemVer comparison operator: =, >, >=, <, <=, ~, ^, *.

Op::Exact

•  =I.J.K — exactly the version I.J.K
•  =I.J — equivalent to >=I.J.0, <I.(J+1).0
•  =I — equivalent to >=I.0.0, <(I+1).0.0

Op::Greater

•  >I.J.K
•  >I.J — equivalent to >=I.(J+1).0
•  >I — equivalent to >=(I+1).0.0

Op::GreaterEq

•  >=I.J.K
•  >=I.J — equivalent to >=I.J.0
•  >=I — equivalent to >=I.0.0

Op::Less

•  <I.J.K
•  <I.J — equivalent to <I.J.0
•  <I — equivalent to <I.0.0

Op::LessEq

•  <=I.J.K
•  <=I.J — equivalent to <I.(J+1).0
•  <=I — equivalent to <(I+1).0.0

Op::Tilde (“patch” updates)

Tilde requirements allow the patch part of the semver version (the third number) to increase.

•  ~I.J.K — equivalent to >=I.J.K, <I.(J+1).0
•  ~I.J — equivalent to =I.J
•  ~I — equivalent to =I

Op::Caret (“compatible” updates)

Caret requirements allow parts that are right of the first nonzero part of the semver version to increase.

•  ^I.J.K (for I>0) — equivalent to >=I.J.K, <(I+1).0.0
•  ^0.J.K (for J>0) — equivalent to >=0.J.K, <0.(J+1).0
•  ^0.0.K — equivalent to =0.0.K
•  ^I.J (for I>0 or J>0) — equivalent to ^I.J.0
•  ^0.0 — equivalent to =0.0
•  ^I — equivalent to =I

Op::Wildcard

•  I.J.* — equivalent to =I.J
•  I.* or I.*.* — equivalent to =I

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Exact

Greater

GreaterEq

Less

LessEq

Tilde

Caret

Wildcard

Trait Implementations

impl Clone for Op

fn clone(&self) -> Op

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Op

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Hash for Op

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Op

fn eq(&self, other: &Op) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Op

impl Eq for Op

impl StructuralPartialEq for Op